Sound Wave, Frequency, Pitch, Decibel

Frequency is measured in the unit of

• Ampere (A)

• Hertz (Hz)

• Mole (mol)

• Candela (cd)

Which of the following determines the pitch of a sound wave?

• frequency
• density
• mass
• reflection

• Amplitude

• Crest

• Trough

• Wavelength

Tags

NGSS.MS-PS4-1

When the car moves AWAY from you, its horn seems...

• Low pitched

• High pitched

• Normal

Tags

NGSS.HS-PS4-1

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-5

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Tags

NGSS.HS-PS4-1

When a car coming toward you, the honk getting_________

• higher
• lower

Tags

NGSS.HS-PS4-1

Short sound waves are...

• high pitched

• low pitched

• medium pitched

Tags

NGSS.MS-PS4-1

Amplitude determines the 

• Frequency of a sound wave
• Pitch of  a sound wave
• Loudness of a sound wave

Tags

NGSS.MS-PS4-1

The loudness of sound depends upon

• the volume of the sound
• energy used to make a sound and the distance from the sound source.
• Pitch of a sound
• Frequency of a sound

Tags

NGSS.MS-PS4-1